KL Litvinenko
Strong dependence of spin dynamics on the orientation of an external magnetic field for InSb and InAs
Litvinenko, KL; Leontiadou, M; Li, J; Clowes, SK; Emeny, MT; Ashley, T; Pidgeon, CR; Cohen, LF; Murdin, BN
Authors
Dr Marina Leontiadou M.Leontiadou@salford.ac.uk
Reader
J Li
SK Clowes
MT Emeny
T Ashley
CR Pidgeon
LF Cohen
BN Murdin
Abstract
Electron spin relaxation times have been measured in InSb and InAs epilayers in a moderate (<4 T) external magnetic field. A strong and opposite field dependence of the spin lifetime was observed for longitudinal (Faraday) and transverse (Voigt) configuration. In the Faraday configuration the spin lifetime increases because the D'yakonov-Perel' dephasing process is suppressed. At the high field limit the Elliot-Yafet spin flip relaxation process dominates, enabling its direct determination. Conversely, as predicted theoretically for narrow band gap semiconductors, an additional efficient spin dephasing mechanism dominates in the Voigt configuration significantly decreasing the electron spin lifetime with increasing field.
Citation
Litvinenko, K., Leontiadou, M., Li, J., Clowes, S., Emeny, M., Ashley, T., …Murdin, B. (2010). Strong dependence of spin dynamics on the orientation of an external magnetic field for InSb and InAs. Applied Physics Letters, 96(11), 111107. https://doi.org/10.1063/1.3337111
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 30, 2010 |
Online Publication Date | Mar 16, 2010 |
Publication Date | Mar 16, 2010 |
Deposit Date | Apr 2, 2019 |
Journal | Applied Physics Letters |
Print ISSN | 0003-6951 |
Electronic ISSN | 1077-3118 |
Publisher | AIP Publishing |
Volume | 96 |
Issue | 11 |
Pages | 111107 |
DOI | https://doi.org/10.1063/1.3337111 |
Publisher URL | https://doi.org/10.1063/1.3337111 |
Related Public URLs | https://aip.scitation.org/journal/apl |
Additional Information | Funders : Engineering and Physical Sciences Research Council (EPSRC) |
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